- array_slice: documentation ( source)
<?php
$arr = ['a','b','c','d','e','f','g','h','i','j','k'];
for($i=0; $i<count($arr); $i=$i+2) { $ar = array_slice($arr, $i, 2, true); echo "<li>\n"; foreach($ar as $key=>$value) { echo
"$value\n"; } echo "</li>\n"; }